Method DoGetRectangle

src/AdornedRulerPanel.cpp:553–580

}

std::pair<wxRect, bool>
AdornedRulerPanel::ScrubbingRulerOverlay::DoGetRectangle(wxSize /*size*/)
{
   Update();

   const auto x = mOldQPIndicatorPos;
   if (x >= 0) {
      // These dimensions are always sufficient, even if a little
      // excessive for the small triangle:
      const int width = IndicatorBigWidth() * 3 / 2;
      //const auto height = IndicatorHeightForWidth(width);

      const int indsize = width / 2;

      auto xx = x - indsize;
      auto yy = 0;
      return {
         { xx, yy,
            indsize * 2 + 1,
            GetRuler()->GetSize().GetHeight() },
         (x != mNewQPIndicatorPos
          || (mOldScrub != mNewScrub)
          || (mOldSeek != mNewSeek) )
      };
   }
   else
      return { {}, mNewQPIndicatorPos >= 0 };
}

void AdornedRulerPanel::ScrubbingRulerOverlay::Draw(
   OverlayPanel & /*panel*/, wxDC &dc)